baber/WOPTO huggingface dataset:
Patent CA-2215240-A1 (CA)
Title: Image sound and feeling simulation system for dentistry
Inventor: HAYKA ALON
IPC: G09B23/28
Filed: 1997-01-29
Abstract: This invention is an image, sound and feeling simulation system (50) for dentist ry, comprising a dental hand-held handpiece (52) having a drill (54) for drilling a cavity (56) in a tooth (58), the drill (54) h aving a drilling end (60), the dental handpiece (52) being shaped and dimensioned suitable to be held in the hand of a user, a first three-dimensi onal sensor (62) providing the system (50) with position and operation in space of at least the drill (54); and a data processing and display unit (68) for simulating of at least the drilling end (60) of the drill (54). The system (50) further comprises means to control the flow of c ompressed air operating the drill (54) and thus to control the rotation of the drill (54) in order to imitate the sound and hand feeling associ ated when drilling through tooth layers of different hardness.
Patent CA-2218249-A1 (CA)
Title: Improved polyvinylsiloxane impression material
Inventor: HARE ROBERT V
IPC: A61K6/90
Filed: 1996-04-12
Abstract: Improved two component polymerizable polyorganosiloxane compositions are described, particularly for use in making dental impressions, having improved tear strength and wettability. Improved tear strength results from inclusion of a quadri-functional polysiloxane having a vinyl content of 0.16 to 0.24 m-mole/g. Working time is maintained by including sufficient amounts of a retarder composition that delays onset of the vinyl polymerization. Wettability is improved by including a surfactant resulting in a surface contact angle with water at three minutes of less than 50 °C. The surfactant chosen has an HLB  of 8-11, such that the wetting contact angle is achieved within less than two minutes and remains wetting throughout the working time of the impression taking, substantially improving impression quality.
Patent CA-2222258-A1 (CA)
Inventor: TARVIN JEFFREY A
IPC: E21B47/00
Filed: 1997-11-25
Abstract: A video logging tool is described which is particularly well adapted for production logging of oil or gas wells. The tool has both an end view optical system and a side view optical system for imaging side and end view on a CCD array in a camera.
Patent CA-2222646-A1 (CA)
Inventor: TSAO FU-PAO
IPC: C08K5/5317
Filed: 1996-06-12
Abstract: La présente invention décrit des composés et des procédés permettant de diminuer le taux de décomposition des biocolles et stimulateurs de viscosité polymériques, tels que les poly(acides acryliques). Les compositions comportent au moins un fort agent chélatant stable, de préférence un composé organophosphorique tel que le diéthylène triamine penta(méthylène acide phosphonique). Ces compositions biocompatibles trouvent surtout leur usage dans le domaine de l'ophtalmologie.
Patent CA-2222693-A1 (CA)
Title: Computer controlled master reproducer for depositing a master reproduction on a substrate
Inventor: KEMENY MATTHIAS D
IPC: G03F1/68
Filed: 1996-05-30
Abstract: A computer controlled master reproducer (10) for depositing a master reproduction (12) on a substrate (13) includes a master source (16) containing in machine readable format one or more masters each having a shape and color characteristic. Also included is a curable material source (18), and gun structure (20) interconnected with the curable material source (18) for shooting the curable material toward the substrate (13) to deposit the master reproduction on it. The gun structure (20) is constructed to shoot the curable material on the substrate (13). Other aspects of the invention include a master reproduction and a method for depositing a master reproduction on a substrate (13) in a form that allows for removal of the master reproduction in one piece.
Patent CA-2223575-A1 (CA)
Inventor: TOUSSAINT BRIAN A
IPC: B61F5/00
Filed: 1998-01-05
Abstract: Improvements in cast metal sideframes and bolsters for railway trucks are disclosed, along with improvements in the processes of casting such products and the cores used in the casting process. In one aspect, the cores are consolidated to provide two one-piece end cores, a one-piece center core, and a bottom center core for the sideframe and two one-piece end cores and a center core for the bolster. The consolidated cores may include cores to define various bolt holes. In another aspect, various cores may be made with step joints for interlocking support without weight-supporting chaplets. In another aspect, a locator boss may be formed on one or more of the cores for proper positioning of the core on the drag mold. Other improvements disclosed include providing a radial draft on the casting surrounding a bolt hole at a core parting or joint line so that nuts and washers may be evenly loaded. In the bolster interior, ribs may be straightened. In another aspect, core prints are used to support the cores on the drag mold surface. The core prints are connected to the core body through necks or bridges that define holes in the cast metal piece. The juncture of the core print and drag mold are spaced from a perimeter of the neck so that any metal fin formed at this juncture is on the exterior of the casting.
Patent CA-2225626-A1 (CA)
Title: Method of using (2-imidazolin-2-ylamino) quinoxalines in treating ocular neural injury
Inventor: WOLDEMUSSIE ELIZABETH
IPC: A61K31/495
Filed: 1996-06-17
Abstract: A method according to which neuroprotection is conferred upon ocular nerve cells by administration of a drug of formula (I) to the optic nerve and/or retina of a mammal within a period prior to or following an insult to ocular nerve cells but prior to cell death, wherein the 2-imidazolin-2-ylamino group may be in either the 5- or 6-position of the quinoxaline nucleus; x, y and z may be in any of the remaining 5-, 6-, 7- or 8-positions and are selected from hydrogen, halogen, lower alkyl, lower alkoxy or trifluoromethyl; and R is an optional substituent in either the 2- or 3-position of the quinoxaline nucleus and may be hydrogen, lower alkyl or lower alkoxy is disclosed.
Patent CA-2226125-A1 (CA)
Inventor: PARDO LUIS TRABB
IPC: B41J29/38
Filed: 1996-07-03
Abstract: Memory storage and memory bandwidth requirements of a color laser printer (or other printer having real-time printing constraints) are reduced by representing image information in a compressed format throughout the rendering process. At any one time during the rendering process, preferably, only a single scan line is expanded to the full, uncompressed format required for eventual printing. The rendered scan line is then recompressed and stored in memory. When all scan lines have been processed and are stored in memory in compressed format, the entire image is then expanded in real time.
Patent CA-2230206-A1 (CA)
Inventor: H G GEORG
IPC: H02G7/10
Filed: 1998-03-27
Abstract: The invention concerns a method of installing a telecommunication cable (3) on a supporting cable (1), particularly on a ground or phase cable of a high voltage overhead line, whereby the telecommunication cable (3) is laid along the supporting cable (1) and is attached thereto in undulating form with the help of attaching elements (5; 11; 13; 15).  This arrangement makes it possible to make repairs in a simple way on the supporting cable (1) and the telecommunication cable (3).
Patent CA-2230292-A1 (CA)
Title: A method for the exact setting down or taking up of cargo from aircraft
Inventor: SCHAEFER INGOLF
IPC: B62D1/22
Filed: 1997-06-24
Abstract: When setting down personnel or cargo from airships without the airship landing, precise setting down is either impossible or possible only with difficulty, particularly in poor weather. The aim of the invention is to provide a method by which a load can be set down or picked up with high or spot-on precision, even when the ambient conditions do not permit the airship to be kept still. The position of the load is clearly fixed by a three-dimensional network of ropes spanned from the airship, and the load is lowered down to, or taken up from, the ground, without the airship being required to remain still. During this time, the airship remains at a suitable height above the load. The invention is suitable for use in the transport of cargo by airships to building sites, within catastrophy areas, etc.
Patent CA-2232740-A1 (CA)
Title: Multi purpose grasping tool
Inventor: ORBANSKI DANIEL ROBERT
IPC: E02F3/96
Filed: 1998-03-19
Abstract: Apparatus for pulling and lifting an element such as a buried rock or stump comprises a rectangular frame for mounting on a forward end of lifting arms of a vehicle so as to project forwardly therefrom. A pair of first jaws are fixedly mounted on the frame in the form of plates connected between a top bar and a bottom bar so as to project forwardly and downwardly from the frame. A second jaw is mounted between the first jaws on a cross pivot shaft for pivotal movement relative to the frame between a raised open position and a lowered closed position so that the second jaw co-operates with the first jaws in the closed position to squeeze the element therebetween.
Patent CA-2233631-A1 (CA)
Inventor: MARTIN STEVEN C
IPC: H01G4/08
Filed: 1996-09-25
Abstract: A method of making capacitors (25) comprising, providing as the dielectric (27) and/or conductive layers (26), a material made from a diamond-like nanocomposite solid-state material having interpenetrating atomic scale networks of carbon in a diamond-like carbon network stabilized by hydrogen, a glass-like silicon network stabilized by oxygen, and optionally at least one additional network of dopant elements or dopant compounds having elements from Groups 1-7b and 8 of the periodic table.
Patent CA-2233730-A1 (CA)
Inventor: MUMICK INDERPAL SINGH
IPC: H04M15/00
Filed: 1998-03-31
Abstract: A method and system in which calls made on two or more phone lines of a customer are aggregated for billing and discount billing plans to which the customer subscribes are applied to the aggregated phone usage of the customer. In order to price a call made over a network by a customer of the network, information specifying a billing plan of the customer and information specifying a plurality of telephone lines to which the billing plan applies are stored. A call made from one of the plurality of telephone lines is received at a network switch and record that describes the call is generated. The record is received at a billing analysis system and a priced call value for the call is determined based on the record and the information specifying the customer billing plan. The record that describes the call comprises an identifier of the telephone line from which the call was made and priced call value for the call is determined by accessing the information specifying the customer billing plan using the identifier in the received record.
Patent CA-2234343-A1 (CA)
Title: Process for modifying aliphatic polyamides with polyurea
Inventor: TEASLEY MARK F
IPC: C08G69/48
Filed: 1996-10-16
Abstract: The end groups of an aliphatic polyamide may be changed by reacting a polyurea with a molten aliphatic polyamide at temperatures of about 260 °C or more. Carboxyl end groups are controllably converted to amine end groups. This is especially useful for controlling the dyeability of fibers spun from such aliphatic polyamides.
Patent CA-2235188-A1 (CA)
Title: Respective inflatable arbors for making backdraft cavity in sand core and for forming part of core lift device insertable in cavity
Inventor: DURCHENWALD LARRY DON
IPC: B22C9/10
Filed: 1998-05-15
Abstract: Tooling including an inflatable arbor is provided for forming a backdraft cavity in a foundry sand core. A core handling device includes an inflatable arbor, similar to the one used for forming the backdraft cavity in the sand core, whereby the lifting device arbor, when in its deflated state, may be inserted into the backdraft cavity of the sand core and then inflated to grip and become locked to the sand core.
Patent CA-2236596-A1 (CA)
Inventor: BAUER JOHN J JR
IPC: F25B27/02
Filed: 1996-11-01
Abstract: A heat transfer apparatus (2) that uses an adsorbent material to generate a cooling effect. The heat transfer apparatus (2) includes a first vessel (4) containing adsorbent material (10) and a second vessel (6) interconnected to the first (4). A working substance is contained within the two interconnected vessels (4, 6). The adsorbent material (10) and working substance (26, 28) are sized such that the working substance is completely adsorbed in both liquid and solid states (26, 28) by the adsorbent material (10) from the second vessel (6) into the first (4), cooling the second vessel (6) and heating the first (4). Complete adsorption includes adsorption of the working substance by vaporization when the working substance is in a liquid phase (26) and adsorption by sublimation when the working substance is in a solid phase (28). The second vessel (6) contains a compressible foam which accommodates the expansion of the working substance when it changes phase from a liquid to a solid and prevents the second vessel (6) from breaking.
Patent CA-2240379-A1 (CA)
Title: Process and plant for separating air by cryogenic distillation
Inventor: TRANIER JEAN-PIERRE
IPC: F25J3/04
Filed: 1998-06-11
Abstract: The air coming from a blowing turbine  (13)  and intended for the low-pressure column of a double column (2)  is cooled by indirect heat exchange with a liquid (15,  20).  This  liquid  is  a  purge  stream  from  a condenser (5, 6) of the system.
Patent CA-2241336-A1 (CA)
Title: Herbicidal composition and method of weed control
Inventor: RUEEGG WILLY
IPC: A01N43/90
Filed: 1996-12-23
Abstract: The invention relates to a herbicidal composition, comprising a compound of formula (I) and a compound of formula (II) and/or of formula (III) or an agriculturally acceptable salt of the compound of formula (II) and/or (III) in admixture.
Patent CA-2241534-A1 (CA)
Title: Fermeture pour recipients
Inventor: KATELEY PETER ARTHUR
IPC: B65D43/06
Filed: 1996-12-16
Abstract: L'invention porte sur un procédé de création d'un joint étanche pour récipients à l'aide d'un film transparent, lequel, associé à des anneaux, peut constituer le couvercle de boîtes de conserves. Il en existe une exécution consistant à incorporer au joint un gaz indicateur.
Patent CA-2245390-A1 (CA)
Inventor: NORTRUP EDWARD H
IPC: H01J61/34
Filed: 1998-08-20
Abstract: A reflector lamp 10 has a vitreous outer envelope 12 formed of a concave reflector 14 and a light-transmitting 16 cover peripherally sealed thereto. The concave reflector and cover are symmetrically arrayed about a longitudinal axis 18 and a substantially cylindrical, hollow neck 20 having a given depth is affixed to the concave reflector opposite the cover. The neck 20 also is symmetrically arrayed about the longitudinal axis 18 and has a substantially closed bottom 21. At least two eyelets, 22, 24, respectively, are sealed in the bottom 21 and a light source capsule 26 is positioned in the concave reflector and aligned with the longitudinal axis 18. The light source capsule 26 has a first end 28 situated in the neck 20 and a second end 30 extending into the concave reflector. The light source capsule 26 comprises a quartz arc tube 32 containing an arc generating and sustaining medium and a surrounding aluminosilicate glass shroud 34. First and second conductive lead-ins 36, 38, respectively, are sealed into a first seal 40 formed at a first end 42 of the shroud 34. Each of the lead-ins 36, 38 has a first portion 44, 46, respectively, sealed in one of the eyelets 22, 24. The first conductive lead-in 36 has a second portion 48 extending interiorly of the shroud and connecting a first electrode 50 of the arc tube and contains a bend or offset 49 to take expansion differences during operation. The second lead-in 38 has a second portion 54 terminating within the first seal 40. An outer conductor 56 has a first end 58 sealed in a second end 60 of the shroud 34 and connects a second electrode 62 of the arc tube 32. A middle section 64 of the outer conductor 56, which is surrounded by an electrically insulating sleeve 57 for at least part of its length, extends exteriorly of the shroud 34 and has a second end 66 connected to the second said lead-in 38. A conventional screw base 68 completes the lamp.
Patent CA-2247340-A1 (CA)
Inventor: LAROSE CLAUDE
IPC: B23D61/06
Filed: 1998-09-16
Abstract: A saw tooth of generally parallelepiped shape having top and bottom surfaces, side surfaces and front and back surfaces. At least two end sections of the front and back surfaces extend inwardly, from their connection with one of the top and bottom surfaces, toward the other of the front and back surfaces. Each end section defines a cutting edge with its connection with the one of the top and bottom surfaces. The cutting edges are parallel to each other.
Patent CA-2249106-A1 (CA)
Inventor: MANSON MURRAY A
IPC: B65D90/24
Filed: 1998-10-02
Abstract: A secondary containment tub, comprising a lower leak proof compartment having an upper rim and a base and a cover hinged to the upper rim by hinges. A metal collar extends around the upper rim. A flange on the base is provided for securing the lower leak proof compartment to a support. A tank is disposed within the secondary containment tub, with the tank being supported above the base of the lower leak proof compartment, preferably on a metal frame, at a level such that the tank cannot float in fluid spilled from the tank into the lower leak proof compartment.
Patent CA-2249527-A1 (CA)
Title: Photoimageable composition having improved flexibility, adhesion and stripping characteristics
Inventor: LUNDY DANIEL E
IPC: G03F7/033
Filed: 1998-10-05
Abstract: A negative-acting photoimageable composition useful as a photoresist comprises an acid-functional binder, a photopolymerizable component, a photoinitiator chemical system comprising 9-phenyl acridine or a homologue thereof, and a dibenzoate plasticizer.
Patent CA-2250695-A1 (CA)
Inventor: CHEN HELEN Y
IPC: A61P35/04
Filed: 1997-03-20
Abstract: Classe de composés représentés par la formule (I) ou sel de ceux-ci acceptable sur le plan pharmaceutique, compositions pharmaceutiques comprenant des composés de la formule (I) et techniques permettant d'inhiber sélectivement ou d'antagoniser l'intégrine .alpha.¿v?.beta.¿3?.
Patent CA-2251065-A1 (CA)
Title: Frozen dessert dispensing system
Inventor: WELLS ANDREW MICHAEL
IPC: A23G9/28
Filed: 1998-10-20
Abstract: A dispensing system for frozen desserts includes a plurality of containers and a dispensing device. Each container contains an individual portion of frozen dessert, and includes a substantially cylindrical tube having first and second ends, a nozzle means towards the first end, and a piston means located between the nozzle means and second end, which is adapted for sliding movement along the tube. The individual portion of frozen dessert is contained within the cylindrical tube between the nozzle means and piston means. The dispensing device includes a plunger means mounted for reciprocating movement along a longitudinal axis, a drive means for driving the plunger along the axis, and a support means for supporting the first end of the container with the plunger in engagement with the piston means. The arrangement is such that with the container located on the support means, the individual portion of frozen dessert may be dispensed by actuating the drive means.
Patent CA-2252172-A1 (CA)
Title: Procedure for attaching a guidance unit to a support, the guidance device obtained by this procedure and the marker equipped with such a device
Inventor: CURRENO MARIE-CHRISTINE
IPC: F16B11/00
Filed: 1998-10-27
Abstract: The procedure consists of making a hole (16) in the support (6) to receive one end (8B) of the guide bar (8). The transverse dimensions of the hole are made substantially greater than those of the bar end, and after the bar end has been positioned precisely in the hole the resulting gap (20) is filled with a polymerizing resin. Once the two ends of the guide bar have been fitted in the support it can be held to prevent axial movement by fixings in the support which overlap the guide bar end faces. In a variant any axial movement can be prevented by having the tips of the guide bar chamfered to make recesses for wedges of the resin.
Patent CA-2252914-A1 (CA)
Title: Cosmetic cream composition containing silicone gel material
Inventor: LEE WILSON
IPC: A61K8/00
Filed: 1997-05-21
Abstract: Disclosed is a solid cosmetic composition (e.g., a cream composition) containing an active cosmetic material (e.g., a deodorant active, an antiperspirant active, a sunscreen, an insect repellent and/or an anti-fungal agent) and a silicone gel material. The silicone gel material includes (a) a volatile silicone material and (b) an organopolysiloxane material as a gelling agent, able to form a gel after being mixed with the volatile silicone material. The organopolysiloxane material can be a reaction product of a vinylterminated siloxane polymer and a hydride cross-linking agent. The composition can be formed by mixing the active cosmetic material and silicone gel material at ambient temperature. The compositions do not need particulate or clay thickeners or waxy gelling agents.
Patent CA-2254856-A1 (CA)
Title: Printing mechanism
Inventor: HAUG WERNER
IPC: B41J25/312
Filed: 1998-02-24
Abstract: The invention relates to a printing mechanism the printing head (1) of which is applied at a generally constant pressure against a surface of an object to be printed. To this end both the printing head (1) and the pressure cylinder (6) are mounted on pivotable levers (2, 7, 8) connected to each other by springs (9, 13). Said printing mechanism may be used especially in postal franking machines.
Patent CA-2255427-A1 (CA)
Title: Pivoting knife clamp
Inventor: DUNNE MICHAEL J
IPC: B27G13/10
Filed: 1998-12-11
Abstract: An improved system for clamping and retaining a cutting knife in position in an apparatus for processing wood.  The apparatus includes a support surface, a cutting knife, an associated holding location on the support surface to receive the cutting knife, and a clamp member having a clamping surface to engage and hold the at least one cutting knife in the associated holding location.  The improvement involves mounting the clamp member to the support surface at a pivot joint for pivotal movement of the clamp member with respect to the support surface.  The clamp member has a clamping surface that extends on one side of the pivot joint and a lever arm extending on the other side of the pivot joint. An actuating member is provided to apply a force to the lever arm so that a clamping force is applied to the cutting knife through the clamping surface according to the principle of a first order lever.  The pivoting clamping arrangement provides secure and reliable clamping of the cutting knives.  The pivoting joint between the clamp member and the support surface tend to evenly distribute the clamping force along the length of the cutting knife for better retention of the knife.
Patent CA-2257552-A1 (CA)
Inventor: SCHWEIKERT LONI
IPC: A23L5/44
Filed: 1999-01-14
Abstract: Carotenoid aggregates are useful as colorants for foods and for cosmetic and pharmaceutical preparations.
Patent CA-2260757-A1 (CA)
Title: Rubber compounds containing aromatic ketone polysulfides
Inventor: WIDEMAN LAWSON GIBSON
IPC: C07C323/37
Filed: 1999-02-05
Abstract: The present invention relates to rubber compounds containing aromatic ketone polysulfides of the formula:    wherein R is selected from the group consisting of alkyls having from 1 to 18 carbon atoms and x is an integer of from 2 to 8.
Patent CA-2261455-A1 (CA)
Inventor: NIELSEN JOHN E
IPC: F02P5/02
Filed: 1999-02-10
Abstract: An engine ignition timing tool for use with a strobe timing light in setting the timing of Harley-Davidson motorcycle engines, including a modified circuit breaker cam bolt having a pointer indicator and degree scale plate attachable to the gear cover. The tool is installed and the engine timing adjusted with the circuit breaker cover removed so that the pointer may be observed with a strobe light and the timing adjusted with the engine running.